Which to use
“ferreux” and “foireux” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #39,799
- “ferreux” frequency rank
- #27,439
- “foireux” frequency rank
- 67238
- confusion score
Side-by-Side Comparison
| Feature | ferreux | foireux |
|---|---|---|
| Definition | Qui contient du fer. | Qui se rapporte à la colique, la diarrhée. |
Where the eye mixes ferreux and foireux
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. ferreux (CVCCVVC) and foireux (CVVCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between ferreux and foireux
A purely visual mix-up. ferreux (\fɛ.ʁø\) and foireux (\fwa.ʁø\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 67238, derived from the frequency rank of both members and their visual similarity.
ferreux is recorded at frequency rank #39,799, classified as anadj, pronounced \fɛ.ʁø\. foireux is at rank #27,439, tagged as anadj, pronounced \fwa.ʁø\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 67238, this pair ranks #64,283 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of ferreux vs foireux
Shared letters: efrux. Private to "ferreux": -. Private to "foireux": io.
"ferreux" · 7 letters · shape CVCCVVC · "foireux" · 7 letters · shape CVVCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "ferreux" and "foireux" be used interchangeably?
Which is more common, "ferreux" or "foireux"?
After this comparison
Eye-level mix-up between "ferreux" and "foireux" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ferreux" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "foireux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #64,283 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ferreux" and "foireux" also get mixed up with nearby pairs, the highest-scored neighbour is "ferret vs ferreux". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #64,283 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.